Huawei SUN2000 Series - Page 78

No. Parameter Description
1 Unbalance voltage
protection threshold
(%)
Species the inverter protection threshold when the power grid
voltage is unbalanced.
2 Insulation resistance
protection threshold
(MΩ)
To ensure device safety, the inverter detects the insulation
resistance of the input side with respect to ground when it
starts a self-check. If the detected value is less than the preset
value, the inverter does not connect to the grid.
4 Phase angle oset
protection
The standards of certain countries and regions require that the
inverter needs to be protected when the phase angle oset of
the power grid three phases exceeds a certain value.
5 Voltage threshold for
10-minute overvoltage
protection (V)
Species the 10-minute overvoltage protection threshold.
6 Duration threshold for
10-minute overvoltage
protection (ms)
Species the 10-minute overvoltage protection duration.
7 Level-1 overvoltage
protection threshold
(V)
Species the level-1 grid overvoltage protection threshold.
8 Duration threshold for
level-1 overvoltage
protection (ms)
Species the level-1 grid overvoltage protection duration.
9 Level-1 undervoltage
protection threshold
(V)
Species the level-1 grid undervoltage protection threshold.
10 Duration threshold for
level-1 undervoltage
protection (ms)
Species the level-1 grid undervoltage protection duration.
11 Level-2 undervoltage
protection threshold
(V)
Species the level-2 grid undervoltage protection threshold.
12 Duration threshold for
level-2 undervoltage
protection (ms)
Species the level-2 grid undervoltage protection duration.
13 Level-1 overfrequency
protection threshold
(Hz)
Species the level-1 grid overfrequency protection threshold.
14 Duration threshold for
level-1 overfrequency
protection (ms)
Species the level-1 grid overfrequency protection duration.
15 Level-1 underfrequency
protection threshold
(Hz)
Species the level-1 grid underfrequency protection threshold.
16 Duration threshold for
level-1 underfrequency
protection (ms)
Species the level-1 grid underfrequency protection duration.
17 Active islanding
protection
Species whether to enable the active islanding protection
function.
SUN2000-(100KTL, 110KTL, 115KTL)-M2
User Manual 7 Man-Machine Interactions
Issue 02 (2022-06-30) Copyright © Huawei Technologies Co., Ltd. 72